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Quantum-Si incorporated (QSI) is a healthcare company in the biological analysis equipment industry, based in Branford, United States, with about 145 full-time employees.
It reported revenue of $2.44 million for fiscal year 2025, down 20.3% from fiscal year 2024, and net income of -$101.34 million. International was its largest region in fiscal year 2025, with 71% of revenue. Its market capitalization was $334.89 million as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Quantum-Si incorporated, a life sciences company, develops proprietary, universal, and single-molecule detection platform applied to proteomics to enable next-gen protein sequencing (NGPS).
Quantum-Si reported $2.44 million in revenue for fiscal year 2025, down 20.3% from $3.06 million in fiscal year 2024.
International: 71% of revenue by region in fiscal year 2025, followed by United States (29%).
$334.89 million as of October 9, 2026.
Listed companies of a similar size in the same industry (biological analysis equipment) include Cytek Biosciences, Inc. (CTKB), Standard BioTools Inc. (LAB), Alpha Teknova, Inc. (TKNO), Nautilus Biotechnology, Inc. (NAUT).